Truck.



A. M. BARRETT.

TRUCK.

APPLICATION FILED MAR.26,1914.

1,125,634, Patented Jan. 19,1915.

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A. M. BARRETT.

TRUCK.

I APPLICATION FILED MABUZG. 1914. 11,15,631 Patented Jan.19, 1915.

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TRUCK.

APPLICATION FILEDMAR.26, 1014.

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TRUCK.

APPLICATION FILED MAR.26.191-1.

1,125,634, Paigented Jan.19,1915.

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2 46. I it fla ma .ARTHUR IVII.v BARRETT, OF CHICAGO, ILLINOIS.

TRUCK.

Specification of Letters Patent.

PatentedJ an. 19, 1915.

Application filed March 26, 1.914.. Serial No. 327,305.

To all whomitmrzy concern; I

Be it known that I, ARTHUR M. BAnnnT'r,

a citizen of the United States, residing at.

Chicago, in the county of Cook, in the State'of Illinois, have invented certain new and useful Improvements in Trucks,- of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to trucks and particularly to that class of truck adapted to be used with a removable platform which may be lifted and carried by the truck. In

commercial use, a single truck isoften provided for use With a great number of platforms under any one of which the truck is adapted to be run for lifting the platform and carrying it to the desired point.

It is one of the objects of my invention to provide a new and improved construction "and arrangement oflifting mechanism by reason of which an operator is enabled to lift a greater load than with the prior constructions.

It is another object of my invention to provide an arrangement and construction of lifting devices in which the stroke of the lifting lever is efi'ective forthe lifting oper- Y ation through a greater angle than has heretofore been attained, thus making possible the lifting of increased loads.

It is another object of my invention to secure increased leverage over prior constructions by reason of providing shorter lifting levers at the front between the side bars of the truck than are used at the rear ends thereof.

It is another object of my invention to provide for moving the rear supporting wheels of the truck forward as the load is raised upon them, thus increasing the distance which the upper ends of the rear I lifting levers must move during the raising operation and'to that extent increasing the effective ,leverage.

Itis another object of m invention to provideya new and improve form and arrangement of truckffor .use with"pianos,,or similar heavy articles. bv which the piano may be lifted very slightly above the floorthrough the medium of special lifting dewhich I wish to covenby this application is set forth in the claims.

In the drawings :--Figure 1 is a. side view of my improved truck with the side bars locked in raised position, the tongue or handle being broken away; Fig. 2 is a simi,

lar view but with theside bars in one of their two lowered positions; Fig. 3 is a side view of my improved truck in position .under a platform with the side bars in their lowermost position; Fig. 41s a front view of my improved truck with the side-bars in raised'position; Fig. 5 is a central vertical section through the front end of the truck, being taken substantially on line 55 of.

Fig. i: Fig. (i is substantially a. vertical section taken on line 66 of Fig.4; Fig.7 is

a view showing a modification of 'the form of truck shown in the figures heretofore described, being specially adapted for use with pianos; Fig. 8 is a cross-section taken on line 8-8 of Fig. 7; Fig. 9 is a view showing the use of two twowheeled elevating trucks or dollies for moving a long beam; Fig. 10 is an enlarged detail of one of the trucks shown in Fig. 9; showing the same in lowered position"; and Fig. 11 is a. front view of one of thedollies shown in Fig. 9, with the same shown in raised position;

Referring now to Figs. 1 to 6, inclusive,

in which corresponding. parts are indicated 15y the .same reference characters :20 indi- Q cetes a. front axle member comprising an a'izle 21 and a king-bolt22,the body Of the g between which a tongue or handle 25- is the truck mounted as means of pins 43-44, respectively, upon' the 45 between which, upon a lever 50.

axle member being cast abollt said axle anti said kingbolt for securingthem in proper position. The axle member 2Uhas projectfrom its front side two lugs 23-24 pivotully mounted by means of a pin :26.

As best shown in Fig-,5, the rear end ofthe' handle 25 is adapted to bear against a shoulder 27 of. the axle member 20 so as to limit the movement of the handle in clockwise direction relativesto said axle member.

.The axle 21 has mounted upon its outer ends carrying wheels 28-29 of any suitable construction. 30 indicates a bolster mounted upon the king bolt -22 and adapted to turn I 41-42 by the) turned ends ,of one side thereon relative to the, axle member 20,.said

bolster comprising ;doWnwardly-extending 3 arms 31-32 at its-ends. Pivotally mounted iipon the bolster 30 is a Ushaped cross-head 33, the lower ends of the arms of which are piigptally mounted upon studs 34-35 extenid-ing outwardly from thearms 31-32 of the bolster30. Upon said studs 3435 are mounted also near their forward ends main 15 side bars 36-37, res'pectinely. Each." of said side bars is.'turned upward at its forw'ard end to afford an olfsetmoiuiting' for'said bar, the bar 37 being extended upward to provide a standard 38. The rearends of the side bars 36-37 are pivotally mounted upon an axle 39 carrying supportin jwheels 40 journaled thereon in any suita le manner. 41-42 indicate the lifting links or' bars of at their forward ends by arms of the cross-head, 33 a short distance from the pins 34-35, Said bars 41-42 are mounted at their rear ends by means of a rod 45 extending through the upper'ends of 40 arms 46 mounted at their lower ends upon said rear axle 39. Referring now particularly to Figs. 4 and 5, 47-48 indicate lugs rising from the bolster 30 at about its central point, pivoted pin 49, is a latch- Said lever 50 is provided with a tooth 51 upon its upper face adapted to engage a'suitable recess in the under face of the cross-head 33 so as to hold said cross- 50 head against movement in counterclockwise direction in Fig. 5 relative to said bolster. Thelever 50 is held against swinging too far upward relative to the bolster 30 by reason of its end portion coming in contact with the body of the bolster. Said lever is held normally in latching position as shown in Fig. 5 through the medium of a coiled spring 52 interposed between the lever and the bolster. 53 indicates a lug rising from the bolfter 30 near one end thereof having,

pivotal y mounted ithereon by means of a pin 54 a latch-levein55. Said lever 55 is provided at its forward end with a notch. 56

adapted to engage a pin57 carried near the p 30 holds'the lever/'55 normally-in latching position as will be! readily understood. The lever 55 carries at its rear end an arm 60 by thefuse of which the operator is enabled to releasethe lever by-pressingthereon with tl1e:"foot;f ,6l indicates a cross-bar secured betweenftlielifting-bars 41- 42; In the construction shown this cross-bar is in the form of an angle-bar, being secured to the bars J "readily release the latch-lever 55 from the pin 57 with his foot, permitting the bolster and the axle member to turn into the position shown in Fig. 3. 'As the bolster 30 reaches its lowermost position, the tooth 51' carried by the latch-lever 50.is caused to enter the recess in the cross-head 33, effectively locking said bolster and said crosshcad together, with {the arms of the crosshead in engagement {with the pins 63 of the bolster. Astroke e f-the handle or lever 25 ,i in clockwise direction in the figures thereupon'causes the bolster and cross-head to revolve in clockwise direction, bringing the pivot pins 3435..and the side bars 36-37 forward. and upward relativeto the front axle 21, and moving the lifting. bars 41-42 also forward and upward. As the stroke of the lever 25 continues, the side-bars 36-37 shown in Fig. 1. As this movement is being completed, the latch-lever 55 is caused to engage the pin 57, looking the parts in the position shown in said Fig. 1. As, will be readily understood, by reason of:'{ the forward movement of the axle 39 relative to the bolster '30 and the cross-head 33, aetuated through the medium of the side bars 36-37 as ubove described, uponlan operative stroke ofjthe lever or' handle 2,5, the.;anglethrough which the said lever 5 ;moves is greater than that through which the arms 46'move in the same period of time, whereby a material gain in the elfecti've leverage of the mechanism is attained. After the part'sihave been brought'tdthe' position shown in Fig.

cause the supporting wheels 40 to bedrawn amassesired-and the front axle 21 being free to be angled horizontally as desired relative to the platform. When the platform has been brought to the desired position upon the floor, the latch-lever 55 can be released by the foot of the operator and the platform with its load can then through the medium of the handle 25 be lowered gradually into position upon the i'loor,'the parts assuming The latchlever 50 may then be released if desired and the holster may be raised through the medium of the handle 25 until the latchlever 55 again engages the pin 57, bringing v between the 'ivot 39 and the rod 45; consebeing connected at their upperlends to the the truck into the condition shown in Fig. 2. The handle 25 can then be raised and lowered freely and the axle 21 can also be angled for controlling the direction of movement of,the truck. If desired, when the truckis locked in the position shown in Fig. 1, but with a loaded platform thereupon, the lever 50 may be released, permitting the lifting bars 41-42 to drop immediately to the position shown in Fig. 2. It will be noted that the distance between the pivots 34: and 43 is less than the distance quently, as t e arms 31-32 act as levers to pull the lifting bars l1-42 forward and so rock the arms 46 to lift the rear ends of the lifting. bars, I obtain greater leverage and increased lifting effect with a given expenditure of power. Owing to this arrangement and to the inclination forward and downward ofthe liftii'rg bars, the rear ends of the lifting bars become operative to lift the load before the front end portions of said bars do any lifting, and therefore as only part of the load is lifted at first, the work of raising the entire load is made much easier.

In Figs. 7 and 8, in which I have shown a modified form of construction for use especially with pianos or similar heavy articles, corresponding parts are indicated by the same reference characters, but with the addition of the exponent a. In this construction the main side-bars which are in the form of angle-bars are indicated by the numerals 64-435. As shown in Fig. 7,.the

side-bars 64.65 are connected near their forward ends by a bracket 66 by which said bars are strengthened against lateral movement relative to each other. Each of the side bars 64'65-has journaled in it an axle 67 carrying supporting Wheels 68-69. Upon each side ofeach ofsaid side-bars tie- 65 there is-a link 70 pivotally mounted at its lower end upon. the axle 67, said links 70 lifting bars l1*-4l2 respectively, by means of pins 71-72 As will be readily understood, the operation of the truck as illustrated in Figs. 7 and 8 is the same as that of the truck heretofore described. In practice, a plurality of U-shaped brackets 73 will be provided having outwardly extending arms at their upper ends adapted to be engaged by the lifting bars of the truck. A piano or other similar heavy article, which it is desired to have moved frequently about a factory, either in the course of manufacture or at any other time, will be provided with two or more of such U-shaped brackets 73. truck of the type just described can then be backed under the horizontally-extending arms of the U-shaped brackets with the side bars of the truck on opposite sides of the piano and the piano can be lifted in the manner heretofore described. If desired, a platform having outwardly-extending arms can be used in lieu of the brackets.

Referring now to Figs. 9, 10 and 11 which show the construction of my improved dolly, 74 indicates an axle member provided with an axle 75 and a suitable king-bolt, not shown, the member 74- being cast directly about said axle and said l ing-bolt. The axle 75 has mounted upon its ends carrying wheels 76-77. The axle member has mounted upon it so as to turn upon a king-bolt carried thereby a bolster 78 comprising arms 79+80 extending downwardly at its ends. The bolster 78 has pivotally mounted upon it a cross-head 81comprising arms 82-83 by which it is pivotally connected with the bolster 78 upon the pins 84-85 respectively. I

As best shown in Fig. 10, the cross-head 81 has a'flat upper face with the exception of a stop 86 secured thereon. 87 indicates a stop carried by the arm 83 of the cross-head adaptedto contact a stop 88 mounted upon the bolster for limiting the movement of such parts relative to each other upon the pins 8-l--85. as is shown in Fig. 10. For locking the bolster and cross-head together to prevent relative movement latch-lever 89 is provided, mounted upon the arm 82 of the cross-head 81 by means of a pin 90. As best shown in said Fig. 10, said latchlever is provided near its end with a notch 91 adapted to engage apin 92 carried by the bolster 7 8. The latch-lever 89 is held against movement too far in clockwise direction in said Fig. 10 by means of a pin 93 carried by the arm 82 of the cross-head. The latch- {ever is held normally in position to engage the pin 92 by means of a coiled spring 94 interposed between the upper face of said lever and the under face of the cross-head. The axle member 74 is provided with two lugs 95-496 between which. by means of a pin 97, a handle or lever 98 is mounted. As

- or in any other suitable manner, the crosshead 81 being run directly under the end of the beam up to the point where the beam comes in contact with the stop 86. .The handle or lever 98 is then given a movement in counterclockwise direction in Fig. 10 thus turning the axle member 7% and with it the bolster T8, causirm the cross-head 81 to rise into contact with the beam 101 and raising said beam by the further upward movement of the cross-head. As the bolster 78 comes substantially into vertical position above the axle which will have moved to the right in Fig. 10 during the raising operation, the latch-lever 89 will be brought into operative engagement with the pin 92 thus looking the or'osshead and the bolster together, with the handle 98 standing in oblique position as is shown at the right tin Fig. 9. With the handle in this position, the axle 75 is free to turn upon the king-bolt, as will be readily understood. With a dolly in position at each end of the beam 101 and with the cross-heads of the (lollies locked in ele-' vated position, the beam can be moved as desired by the use of one of the handles 98. It is preferable, however, that. the axle 75 of'the dollywhich is in the rear in the movement of'the swinging horizontally relative to the crosshead. This can'be accomplished by moving such handle upward longitudinally of itself to free the lower end of the handle from the socket 99. The handle may then be turned into vertical position, as shown at the left in Fig. 9, into position in a notch 103 in the-edge of, the cross-head whereby the handle and the axle are held against swinging upon the king-bolt, as will be readily understood. The handle when moved in vertical position in this. way is adapted to be retained in such position by being slid downward in contact with a shoulder 104 of the axle member, best shown in Fig. 10. It will be readily understood that by reasonof the engagement of the "flat upper face of thc dolly with the under face of the beam the dolly as a whole is held against tipping on a transverse axis,..inasmuch as such tipping would in olve apreliminarv raising of that end of the eam.

While I have shown the use of two siinilar dollies at the'ends of the beam it will be understood that I do not wish to limit mybeam should be locked against self to the use of similardevicesrJ-As be readily seen, with a beamsu tiported. on two such dollies as shown Fig. 9, when.- both handles 98 are turned laterally toward.

the same side, the beam is free toifall to- 74) ward the opposite side. I therefore contem plate the use of a dolly such ,as that shown I at oneend, While at'the other end of the beam a dolly is used of somewhat similar constructionbut not involving the pivota:

75 connection between the axle and'the beam-.- supporting plate. I i 7 ea;

So far asl am aware, I am the first in the, art to provide shorter linksor levers for con? necting the front ends of the lifting bars 8Q with the front ends of the side-bars than K are used at their rear ends, by the use; ofwhich short centers in front increased lever age is attained, and I desire accordingly to. claim this feature broadlyyboth in the par-; ticular embodiment illustrated by the draw: lugs and in any other similar or equivalent constructions. By reason of my arrangement and construction, in which the front end of the links or bars 41 when in. loweredposition are lower than the rear ends of said bars, the rear ends of the saidliiting be re 41 are brought into contact with the platform i 62 earlier than are the front ends and consea quently begin their effective lifting opera; tion sooner. The arrangement is such that thearms lG-arevery-nearly in a vertical positionwith the rear ends of the bars 4:1 very nearly iii-their uppermost position before, the front ends oi the saidbars begin their ioo lifting operation. This resultsv in much. greater eliectiveness for lifting heavy loads thanwould be attained if both ends of the said bars performed the heaviest part of their lifting at the same time. As will be appreciated upon an inspect on of the drawings,th'e eross-head 33, the bolaster 30, the axle-member 20, and the handlev 25, when latched together as in Fig. 3, con stitutc in effect a. single lever adapted to turn about the smile 2111s an axis.

What I claim as my invention to secure by" Letters Patent is,-

1 In an elevating truck, the combination with a carriage ocm iirising front and rear wheels, side-bars connected with the rear wheels, and. a lever iulcrumed upon the axis and desire of, the front wheels and having a member by which it is connected withthe front end portions of said side-bars eccentric-ally rel'a- 12o tire to said axis, of lifting bars, and arms connecting the rear end portions of said l fting bars with he carriage, said lever be ng also-connected with the front end portions of said lifting bares 2. In an elevating truck. the combination with a .earringe comprising front and rear wheels;-,side-bars connected with the rear, wheels, and a lever fulcrumed uponthe axis of the front wheels and connected with: the 1% g n-relative to said side-bar, otally connected to said 1,1253% I &

front end portions of said side-bars, of lift- 'ing' bars, arms pivctallyconnected with the rear end portions of said lifting bars, and

connections between said lever andthe front of a sidebar, a supporting wheel revolubly mounted on sald sidebar, an arm pivotally mounted on the axis of said. supporting wheel, a lifting bar pivotally connected to said arm, a lever pivotally connected to both 1 5 of said bars, and a supportingwheel about which the pivotal connection between said lever and 'said side-bar is adapted to-bc moved by a stroke of said lever.

4. In-an elevating truck, the combination of a side-bar, a supporting wheel revolubly mounted on said sidqar, an arm pivotally ,mo\.inted on the HXIS of said supporting wheel, alifting Pivotally connected to Said arm, a lever pivot-ally connected to both of said bars, and a supporting wheel about which the pivotal connection between said leve and said side-bar is adapted to be m fil'by a stroke of said lever, the distance een the pivotal connections of said lever i Said bars being shorter than the distance between the pivotal connections of said arm to said bars.

a 5. In an elevating truck, the combination of a side-bar, an arm pivotally' mounted thereon, a lifting bar pivotally connected to said arm, and a lever pivotally connected to both of said bars eccentrically relative to the taxis upon which said lever turns for moving ,both of said bars longitudinally of themselves, whereby upon a stroke of said lever said arm is swung about its pivotal connection with said side-bar and at the same time the axis about which the arm 18 swinging'ls moved in the same direction. 6. In an elevating truck, the combination of a side-bar, an arm pivotally mounted thereon, a supporting wheel revolubly mounted on the pivotal axis of said arm a lifting bar pivarm, a lever pivotally connected to both of saidbars eccentrically relative to the axis upon which saidlever turns for moving both of'said bars longitudinally of themselves, and a support- .5 ing wheel mounted upon said axis relative to which supporting wheels said lever turns. a stroke of said lever serving to swing said farm about its pivotalconnection'with said side-bar and at the same time to move in the i 5 same direction the axis about which said arm is v swings; 1 a

In an elevating truck, the combination with ,a-"carriage comprising side-bars and F frontand'rear wheels connected with the end pertio'ns offi'saidpside-bars, of lifting bars.-

and swinging members pivotally connecting the front and rear end portions of said lifting' bars respectively with said side-bars, the connections of the front end portions of said side and lifting bars being closer together than the'connections of the rear end portions thereof.

8. In an elevating truck, the combination with a carriage comprising side-bars. and front and rear wheels connected with the end portions of said side-bars, of liftin bars, swinging members pivotally connecting the front and rear end portions of said lifting bars respectively with said sidebars, the connections of the front end portions of said side and'lifting bars being closer together than the connections of the rear end'portions thereof, and a lever for swinging the front connections.

9. In an elevating truck, thecombination with a carriage comprising side-bars and front and rear wheels connected'with the end portions of said side-bars, of lifting bars, arms pivoted upon the carriage and piwotally connected to the rear end portions of said lifting bars, and levers pivotally connected to the front end portions of said side bars and said lifting bars, the pivotsof the front end portions of said side bars and said lifting bars being closer together than the pivots of the real-end portions thereof.

10. In an elevating truck, the combination with a" carriage comprising side-bars and front and rear wheels connected with the end portions of said side-bars, of lifting bars supported bv the carriage, and mechanism for raising the lifting bars. said mechanism operating antomaticallv to start raising said lifting bars at one end before they are raised at the-other end. 7

111 In an elevating truck. the combination of a longitudinallv-extcnding bar. an arm ada ted to swingabout an axis movable with said bar, a cross-head adapted to be swung adapted to swing about an .axis movable with said bar, a lever adapted to swing about a horizontal axis. a second bar connecting said arm and said lever adaptedto be raised byan operative stroke of the lever. and means for connecting said'first-named bar'to said lever between the'noint of connection of.

said second bar to saidlever and the axis of revolution of said lever.

13. In an elevating truck, the combination of a longitudinallyextending bar, an arm adapted to swing about an aXis movable with said bar, a cross-head adapted to swing about a horizontal axis, a second bar connectingsaid arm and said cross-head adapted to be raised by an operative stroke thereof, and means for connecting said firstnamed bar to said cross-head between the point of connection of said second bar thereto and the axis of revolution thereof.

14:. In an elevating. truck, the combination of a longitudinallyextending, bar, an arm adapted to swing about an axis'movable with said bar, a cross-head adapted to be swung, about a horizontal axis, asecond bar directly over said first-named bar connecting said arm and said cross-headand adapted to be raised by an operative stroke thereof, and means for connecting said first-named bar to said cross-head between the point of connection of said second bar thereto and the axis of revolution thereof, said first-named bar being ofl'set at its forward end whereby said cross-head is adapted toturn into snbstantialiv horizontal position.

15. In an elevating truck, the combination of a longitnd'inallynxtending bar oflsc-t var tical'ly at one end, a second bar, an arm pivotally connecting said bars at their straight ends, a lever pivotally connecting said second bar with the ofi'set portion of said firstnamed her, and means for swinging said lever for raising one of said bars relative to the other bar:

16. In an elevating truck, the combination of a longitudinally-extending bar ofi'set'upward at one end, a second bar, an armpivotal-ly connecting said bars at their rear ends whereby the-upper bar is adapted toflrest upon said first-named bar or to be raised out of contact therewith, a lever pivotal'ly connecting said second bar with the ofi'set portion of said first-named bar, the pivots of said lever being closer together than the pivots of said arm, and means for swinging said lever for raising the upperbar out of contact with the first-named bar.

17.. In an elevating truck, the combination of two longitudinally-extending bars one at each side of the truck each ofise't upward at one end, two other bars, arms pivotally connecting said bars at their straight ends whereby the upper bars are adapted to rest upon said first-named bars or to be raised out of contact therewith, a cross-head the ends of which serve to pivotally connect said second-named bars with theoflFsct portions of said first-named bars, and means for swinging said cross-head for raising said second-named bars.

18; In an elevating truck, the combination of a longitudinallysextending bar, a lifting lever pivotally' mounted relative. to said bar.

an arm pivotally mounted relative to said-- bar, and a link pivotallgvconnecting said distance between the axis of rotation of said arm and the connection of said linkthereto.

19. In an elevating truck, the combination of a longitudinally-extending bar, an arm adapted to have an operative stroke from a diagonal position to approximately a vertical position, lever pivotally mounted relative to said bar, a link pivotally connecting said arm with said lever, the distance between the axis of rotation of said lever and the connection of said link thereto being less than the distance between the axis of rotation of said arm and the connection of said link thereto, and means for moving said l'e. vcr through an angle of approximateiy ninety degrees relative to said-bar for an operative stroke of said arm through a smaller angle.

20. In an elevating truck, the combination of a longitudinaliy-ex'tendingbar, a littinglever pivotally mounted relative to said bar, an arm pivotally mounted relative to said bar, a link pivotal'ly connecting said arm with said lever, and means for turning said lever about an axis located eccentrically rel-- ative to the connection between said lever and said bar whereby said linkand said bar are moved longitudinally.

21. In an elevating truck, the combination of a longitudinally-extendinebar, a lifting lever pivotally mounted relative to said bar,

anarm pivotally mounted relative-to said bar, a link pivotal'ly connecting said arm with said lever, the distance between the pivotal connection of said lever with said bar and the connection of said lever with said link beingless than the distance betweenthe axis of rotation of said arm and the-.connection of said link thereto, and means for turning said lever about an axis located eccentrica-lly relative to the connection between said lever and said bar, the distance between said axis and the point of connection of said link with said lever being approximately the same as that between the axis of rotation of said. arm and the connectionoi said link thereto. 4

22; Inan elevating truck. the combination oil a frame, a bolster pivotally connected with said frame, said bolster being adapted to be tiltedon an axis below the axis on which it turns-relative to the frame, a crossto be tilted on an axis belowthe axis on which it-turns rclati' veto the frame, a head pivotal lymounted on said last-men' V intense cross-head, means for locking said crossheadand said bolster together, and means for locking said bolster against turning relativeto said frame.

2a. In an elevating truck, the combination v01 a pair of oppositely-disposed side bars offset upward at their forward ends, a bolster pivotally mountedbetween the offset portions of said side bars, said bolster being adapted to be tilted on an axis below the axis upon which it turns relative to said bars, a cross-head pivotally mounted on the offset portions of said side bars, arms pivotally connected to said side bars at their rear ends, lifting bars nivotally connected at their rear ends to said arms and at their front ends to said cross-head, means for locking said cross-head and said bolster together, and meansfor tilting said bolster.

25. In an elevating truck, the combination of a pair-of oppositely-disposed side bars offset upward at their forward ends, a bolster pivotally mounted between the offset portions of. said side bars, an axle member pivotally connected with said bolster and adapted to be swung on a vertical axis relative thereto, carrying wheels mounted on said axle member on an axis below the pivotal connection between said bolster and said side bars, a cross-head pivotally mounted on the offset portions of said side bars, arms pivotally connected to said side bars at their rear ends, lifting bars pivotally connected at their rear ends to said arms andat their front ends to said cross-head. means for locking said cross-head and said bolster together, and means for tilting said bolster.

26. The combination of an axle member in the form of a casting about an axle and a king-bolt, carryingwheels mounted on said axle, abolster pivotallymounted on said king-bolt, a cross-head pivotally mounted on said bolster above the axis of said carrying wheels thereomand meansfor tilting said bolster upon said carrying wheels for raising and lowering said cross-head.

27. In an elevating-truck, the combination of an axle-member, a bolster revolubly mounted on said axle-member, a framepivotally connected with said bolstef'whereby said bolster and said axle-n1ember are adapted to be tipped relatii e to said frame, elevating means movably mounted relative to said frame adapted to be actuated for raising a load relative to said fram.e,-means for locking said elevating means to said bolster for 0 eration thereby, and independentlyopera le means for locking said bolster against movement relative to said frame.

28. In an elevating-truck, the combination of an axle-member, a bolster revolubly V mounted on said axle-member, a frame pivotallv connected with said bolster whereby .saidbolster and said axle-member are adepted to be tipped backward relative to said frame, elevating means movably mounted relative to said frame adapted to be actuated.

by the movement of said bolster into-vertical position for raising a load relative to said frame, means for locking said elevating means to said bolster foran operative stroke thereby fol-raising a load, and independentlyoperable means for locking said bolster against movement relative to said frame.

-29. In an elevating truck, the combination of 'an axle-member, a bolster revolubiy mounted on saidaxleanember, a frame pivotally connected with said bolster whereby said bolster and said axle-member are adapted to be tipped relative .to said frame,-a eross-head pivotally mounted relative to said bolster, means actuated by a stroke of said cross-head in one direction for raisin a load relative to said frame, means for ocking said cross-head to said bolster for operation thereby as said bolster is moved to normal vertical position, and 'independentlyoperable means for locking said bolster against movement relative to said frame.

30. In an elevating-truck, the combinat on of an axle-member, a bolster revolubly' mounted on said axle-member, a frame p1v-.

erable means for locking said bolster against movement relative to said frame, said load being adapted to be lowered relative to said frame either by the tilting of said bolster upon the release of said second-named locking means or by the movement of said crosshead independently of the bolster upon the releasing of said first-named locking means.

mal vertical position, and independently-op- 31. In an elevating-truclnthe combination of an axle-member, a bolster revolubly mounted on said axleaneinber, a frame pivotally connected with said holster whereby said bolster and said axle-member are adapted to be tipped relative to said frame, elevating means movably mounted relative to said frame adapted to be actuated by said bolster as it is moved to normal vertical position for raising a load relative to said frame, and a latch-leverfor 'loeking said bolster against movement relative to said frame,

said latch-lever being. adapted to be released by a downward and backward pressure by the foot of the operator.

32. In an elevating-truck, the combination of an axle-member, a bolster r evolubly mounted on said axle-member, a frame iv otally connected with said bolster whereby.

ml to v Said if! veeidboister and said axle-member are adept- I be tipped relative to said frame, e1emeans movabiy mounted relative to ame adapted to be actuated by said bolster as ii? is moved to normal ertical positien for raising a Load relative to said frame, and a hitch-lever pivotally mounted on said. bplster for locking said bolster renting against movement relative to said. frame,

memee and said bolster being adapted to be given a backward thrust by a downward and back-' ward )ressure upon the latch-lever by the foot of the operator.

ARTHUR M. BARRETT. Witnesses:

JOHN L. JACKSON, W. H. DE-BUsK. 

